Two vectors a and b are at an angle of 60° with each other. Their resultant makes an…
Physics · JEE Main · NTA Exams — Physics and Measurement
Two vectors \(\overrightarrow{\mathrm{a}} \text { and } \overrightarrow{\mathrm{b}}\) are at an angle of 60° with each other. Their resultant makes an angle of 45° with \(\overrightarrow{\mathrm{a}}\). If \(|\overrightarrow{\mathrm{b}}|\) = 2 unit, then \(|\overrightarrow{\mathrm{a}}|\) is
- \(\sqrt{3}\)
- \(\sqrt{3}-1\)
- \(\sqrt{3}+1\)
- \(\sqrt{3} / 2\)
Answer
(B) 3 -1
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